| Kyungwon Ferrite Ind. Co., Ltd Patent applications |
| Patent application number | Title | Published |
|---|
| 20100060966 | ACTUATOR USING PIEZOELECTRIC ELEMENT AND METHOD OF DRIVING THE SAME - An actuator using a piezoelectric element and a method of driving the same. The actuator includes at least one piezoelectric cell moving by displacement according to an input voltage, at least one piezoelectric sensor sensing the displacement of the at least one piezoelectric cell, an error detector detecting an error in the at least one piezoelectric sensor, and a feedback signal generator generating a feedback signal corresponding to the error, thereby performing micromirror driving and sensing. | 03-11-2010 |
| 20090323150 | ACTUATOR FOR HOLOGRAPHIC INFORMATION STORING APPARATUS - An actuator to drive a mirror of a holographic information storing apparatus, the actuator including: piezoelectric cells; support members mounted on the piezoelectric cells; a hinge member mounted on the support member; and a post mounted on the hinge member, to support the mirror. The hinge member includes a bar disposed parallel to a rotation axis of the mirror, and a curved portion that extends from the bar. | 12-31-2009 |
